Prairie voles live in family groups consisting of a monogamous mated pair and their offspring.

一对单配偶的橙腹田鼠及其子女组成家庭，一起生活。

youdao

The Memphis Zoo's panda pair, residents there since 2003, have not produced any offspring.

孟菲斯动物园的一对大熊猫从2003年入园以来目前还未产子。

youdao

The bad news is our pair-bond is designed to last for as long as it takes our offspring to reach some level of independence.

不幸的是这种双纽带仅仅是用来维持到我们的后代达到一定的独立性为止。

youdao

The Alberta government estimates the offspring of a single pair of Norway rats can multiply to 15, 000 in one year.

WSJ: In Alberta, Citizens Smell a Rat After Long-Banned Rodents Appear

Genes are switched back and forth between each pair, so that each chromosome received by the offspring is a mosaic of the parent's pair.

FORBES: DeCode's Genetic Breakthrough Barely Registers

Severino had previously mated with a female parrot, but the pair never produced any offspring.

BBC: Brazil hunts for unique lost bird